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10-11 > DNA STRUCTURE > Flashcards

DNA STRUCTURE Flashcards

1
Q

He established the basic principle of heredity

A

Gregor Mendel

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2
Q

He hypothesized that there is a “FACTOR” that can change a harmless bacteria into a harmful one

A

Frederick Griffith

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3
Q

discovered that the “transforming factor”is the DNA

A

Oswald Avery

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4
Q

Austrian biochemist, analyzed the proportion of the nitrogenous bases in the DNA of various species

A

Erwin chargaff

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5
Q

Percent of adenine, thymine. Percent of cytosine and guanine.

A

31, 19

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6
Q

DNA is the genetic material present in bacteriophages

A

Alfred Hershey and Martha Chase

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7
Q

Studied the structure of DNA using the xray

A

Rosalind Franklin and Maurice wilkins

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8
Q

Pearl of science

A

DNA

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9
Q

Article that describe the structure of the DNA as a double helix

A

Francis Crick and James Watson

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10
Q

DNA is made up

A

Nucleotides

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11
Q

Deoxy means

A

Without oxygen

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12
Q

Four nitrogenous bases

A

Cytosine, guanine, thymine, adenine

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13
Q

Pyrimidine always pair with _ that was observed by chargraff

A

Purine

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14
Q

Described as double helix

A

DNA

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15
Q

Body cell contains about

A

20 to 25k genes

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16
Q

Series of process involved in the production of protein

A

Protein synthesis

17
Q

Process that should be done properly and precisely

A

Mutations

18
Q

Two types of mutations

A

Gene and chromosome

19
Q

Part of chromosome is deleted

A

Deletion

20
Q

Chromosome became longer due to segment attached

A

Duplication

21
Q

Attached reverse orientation

A

Inversion

22
Q

Chromosomes interchange

A

Translocstion

23
Q

Make up fail to Separate during meiosis

A

Nondisjunction

24
Q

Replacement of nucleotides. Affects gametes or a sex cell

A

Point mutations or substitution

25
Q

Substitution in the amino acid of a protein

A

Missense mutation

26
Q

Stop codon was added

A

Nonsense mutations

27
Q

Happens when one or a few nucleotides pairs in the DNA are deleted

A

Frameshift

28
Q

Causes of mutations

A

Exposure to high energy radiation.
Excessive exposure to chemicals

29
Q

Person with mild to severe mental retardation.

A

Down syndrome or trisomy 21

30
Q

Sterile person with sex organs that do not develop

A

Turner syndrome

31
Q

Abnormal body structure

A

Klinefelter syndrome

32
Q

High pitched cat like cry, delayed development

A

Cri du chat syndrome 5p- syndrome

33
Q

Premature aging condition. Adult like appearance

A

Progeria

34
Q

Lamin

A

Family of proteins

10-11 (22 decks)

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